Hi folks, this is my first post and I hope you can help me. My car is a 2001 focus diesel. The problem is the speedo has stopped working. I think the sensor is the problem so I had the car up on axle stands and got the sensor out as described in the haynes manual but I couldn't get the wiring off. Does it pull off or screw off? I couldn't see how its done. Any help would be great.